Volume 30, Number 1 (6-2017)                   jdm 2017, 30(1): 27-32 | Back to browse issues page


XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Siadat H, Jabbari A, Baghani M T, Alikhasi M. The influence of implant placement depth on the accuracy of connecting impression transfers to the implants. jdm. 2017; 30 (1) :27-32
URL: http://jdm.tums.ac.ir/article-1-5611-en.html

1- Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran; Member of Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran; Member of Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
2- Dentist; Member of Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran Dentist; Member of Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
3- Post-Graduate Student, Department of Prosthodontics, School of Dentistry, Shahed University, Tehran, Iran Post-Graduate Student, Department of Prosthodontics, School of Dentistry, Shahed University, Tehran, Iran
4- Associate Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran; Member of Dental Implant Research Center, Dental Research Center, Dental Laser Research Center, Dentistry Research Institute, Tehr Associate Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences
Abstract:   (625 Views)

Background and Aims: The exact placement of impression copings in making accurate prosthesis is very important. In some cases, the implants need to be placed deeply subgingival, which could reduce the direct vision and ultimately reduce the precision of impression copings and subsequently, delivered prosthesis. This would be the cause of multiple complications such as delivery of ill-fitting prosthesis. The aim of this study was to evaluate the effect of the dental implant placement depth on the accuracy of impression coping connection by students.

Materials and Methods: This in-vitro and experimental study was conducted by 50 senior dental students. Four implants at different depths (0, 2, 4 and 6 mm) were placed in a model. After learning how to mount impression coping on implants, the students were asked to mount impression copings on all four implants. The samples were examined by an experienced prosthodontist using a magnifier with 4x magnification. Data were analyzed by statistical Cochran test (P<0.05(.

Results: The proper adapting rate of transfer copings, in subgingival implants with the depth of 0, 2, 4 and 6 mm were 100%, 62%, 58% and 20%, respectively. Statistically significant differences were observed between all groups (P<0.001).

Conclusion: The results showed that there was an inverse relationship between the increasing depth of the implants in the gingiva and the dentist’s ability to connect the impression copings properly.

Full-Text [PDF 484 kb]   (246 Downloads)    
Type of Study: Research | Subject: general
Received: 2017/06/11 | Accepted: 2017/06/11 | Published: 2017/06/11

Add your comments about this article : Your username or email:
Write the security code in the box

Send email to the article author


© 2017 All Rights Reserved | Journal of Dental Medicine

Designed & Developed by : Yektaweb